Celebrities and Halloween are a match made in Hollywood heaven.

With a team of stylists and makeup artists on hand, the biggest names in entertainment pull out all the stops when it comes to celebrating the spookiest night of the year with their A-list pals.

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From Demi Lovato to Kylie Jenner, Kate Beckinsale to Paris Hilton, check out our gallery to see all the stylish costumes from your favourite stars—as well as the ones that stirred controversy.